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Photochroms of Norway in late 19th Century

Tvinde Waterfall and hotel

Landscape and marine views of late 19th Century Norway created by the Detroit Publishing Company using the Photochrom process.
Photochrom, invented in the 1880s, is a process for producing colorized images from black-and-white photographic negatives via the direct photographic transfer of a negative onto lithographic printing plates. The process is a photographic variant of chromolithography (color lithography).
Images: Library of Congress